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DE50013814D1 - FILTERS OF FILTER PAPER OR PAPER-TYPE NONWOVEN FABRIC - Google Patents

FILTERS OF FILTER PAPER OR PAPER-TYPE NONWOVEN FABRIC

Info

Publication number
DE50013814D1
DE50013814D1 DE50013814T DE50013814T DE50013814D1 DE 50013814 D1 DE50013814 D1 DE 50013814D1 DE 50013814 T DE50013814 T DE 50013814T DE 50013814 T DE50013814 T DE 50013814T DE 50013814 D1 DE50013814 D1 DE 50013814D1
Authority
DE
Germany
Prior art keywords
paper
filters
nonwoven fabric
filter paper
type nonwoven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE50013814T
Other languages
German (de)
Inventor
Friedemann Pieschel
Eckehard Lange
Michael Knieling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE50013814T priority Critical patent/DE50013814D1/en
Application granted granted Critical
Publication of DE50013814D1 publication Critical patent/DE50013814D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28023—Fibres or filaments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Paper (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

Filters and methods for producing filter paper or paper-like nonwoven materially consisting partially or wholly of fibrous cellulose containing material. The filters provided are characterized by high filtration capacity and are capable of absorbing and binding undesirable foreign and attendant substances in the filter medium. The cellulose containing material of the is at least partially carbamided with urea and phosphorylated with phosphoric acid or ammonium phosphate until a nitrogen content in the form of carbamide groups of 1 to 4% and a phosphorous content of 3 to 8% are reached.
DE50013814T 1999-05-28 2000-05-20 FILTERS OF FILTER PAPER OR PAPER-TYPE NONWOVEN FABRIC Expired - Lifetime DE50013814D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50013814T DE50013814D1 (en) 1999-05-28 2000-05-20 FILTERS OF FILTER PAPER OR PAPER-TYPE NONWOVEN FABRIC

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19924435A DE19924435A1 (en) 1999-05-28 1999-05-28 Filters made of filter paper or paper-like nonwoven
PCT/EP2000/004589 WO2000072940A1 (en) 1999-05-28 2000-05-20 Filters consisting of filter paper or paper-type nonwoven material
DE50013814T DE50013814D1 (en) 1999-05-28 2000-05-20 FILTERS OF FILTER PAPER OR PAPER-TYPE NONWOVEN FABRIC

Publications (1)

Publication Number Publication Date
DE50013814D1 true DE50013814D1 (en) 2007-01-11

Family

ID=7909437

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19924435A Withdrawn DE19924435A1 (en) 1999-05-28 1999-05-28 Filters made of filter paper or paper-like nonwoven
DE50013814T Expired - Lifetime DE50013814D1 (en) 1999-05-28 2000-05-20 FILTERS OF FILTER PAPER OR PAPER-TYPE NONWOVEN FABRIC

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19924435A Withdrawn DE19924435A1 (en) 1999-05-28 1999-05-28 Filters made of filter paper or paper-like nonwoven

Country Status (9)

Country Link
US (1) US6761272B1 (en)
EP (1) EP1185349B1 (en)
JP (1) JP2003500199A (en)
AT (1) ATE346671T1 (en)
AU (1) AU5396100A (en)
CA (1) CA2375110C (en)
DE (2) DE19924435A1 (en)
ES (1) ES2276685T3 (en)
WO (1) WO2000072940A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6602410B1 (en) 2000-11-14 2003-08-05 The Procter & Gamble Comapny Water purifying kits
DE10215642A1 (en) * 2002-04-09 2003-11-06 Eisu Innovative Ges Fuer Techn Fast-acting agent for the preparation of cold and hot drinks from drinking water
US7803937B2 (en) 2003-10-31 2010-09-28 Kowa Co., Ltd. Cellulose II phosphate ester and metal-adsorbing material using the same
US7741424B2 (en) 2004-09-29 2010-06-22 Kowa Co., Ltd. Phosphoric ester of cellulose derivative and metal adsorbent comprising the same
DE102007003410B4 (en) 2007-01-23 2012-07-12 Produktions- Und Umweltservice Gmbh Ion exchange filter cartridge made from modified natural fiber yarns for the removal of particles, heavy metals and hardness formers in water treatment and their production
CN101433251B (en) * 2007-11-16 2011-11-09 中国科学院地理科学与资源研究所 High-efficient defluorination bag of brick tea and preparation method thereof
EP2670711A4 (en) 2011-02-01 2017-03-29 Australian Biorefining Pty Ltd Cellulose phosphate powder product and process for manufacture thereof, and application to removal of contaminants from aqueous solutions
JP6613771B2 (en) * 2015-09-30 2019-12-04 王子ホールディングス株式会社 Fine fibrous cellulose content
JP7127005B2 (en) * 2019-11-07 2022-08-29 王子ホールディングス株式会社 Fine fibrous cellulose inclusions
DE102019131364A1 (en) * 2019-11-20 2021-05-20 Wolf Pvg Gmbh & Co. Kommanditgesellschaft Vacuum cleaner bags and method of making a vacuum cleaner bag
CN113509800B (en) * 2020-04-10 2022-09-30 中国科学技术大学 Multi-scale structure plant fiber air filtering material and preparation method and application thereof
CN113215853B (en) * 2021-04-21 2022-04-15 湖南环境生物职业技术学院 A kind of urea-based paper and its preparation method and application
CN115722204B (en) * 2022-11-18 2024-07-23 黑龙江省原子能研究院 A method for preparing amino-enhanced phosphorylated cellulose uranium adsorbent

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB838973A (en) 1957-04-16 1960-06-22 W & R Balston Ltd Improvements in or relating to cellulosic material
GB899284A (en) 1957-11-01 1962-06-20 Atomic Energy Authority Uk Improved phosphorylated cellulose and method of obtaining it
GB914421A (en) * 1960-08-15 1963-01-02 Sponcel Ltd Improvements in or relating to cellulosic sponge material
US3658790A (en) 1970-04-22 1972-04-25 Kimberly Clark Co Absorbent fiber products from phosphorylated cellulose fibers and process therefor
JP2653423B2 (en) * 1995-03-29 1997-09-17 工業技術院長 Calcium phosphate compound-cellulose fiber composite material and method for producing the same
CA2312791A1 (en) 1997-12-01 1999-06-10 Eisu Innovative Gesellschaft Fur Technik Und Umweltschutz Mbh Biosorbents and process for producing the same

Also Published As

Publication number Publication date
ATE346671T1 (en) 2006-12-15
US6761272B1 (en) 2004-07-13
WO2000072940A1 (en) 2000-12-07
EP1185349A1 (en) 2002-03-13
CA2375110C (en) 2008-09-23
JP2003500199A (en) 2003-01-07
CA2375110A1 (en) 2000-12-07
EP1185349B1 (en) 2006-11-29
ES2276685T3 (en) 2007-07-01
AU5396100A (en) 2000-12-18
DE19924435A1 (en) 2000-11-30

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Legal Events

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